Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Folding Bikes Discuss the unique features and issues of folding bikes. Also a great place to learn what folding bike will work best for your needs.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 11-30-17, 05:29 PM   #1
smed
Junior Member
Thread Starter
 
Join Date: Jul 2012
Bikes:
Posts: 5
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Rear rack for DownTube 8FS

Anyone find a rear-rack that works on this bike?
It comes with braze-ons on the rear triangle from the factory.
I took it to a reputable bike shop and looked at their selection of about 4-5 Topeak & Planet Bike models and the guy at the store told me I had no choice but to go with one of those seatpost mounted rear-racks. I dont like them and I have to think the braze-ons are there because *some* rack will fit it...trying to figure that part out.
All suggestions appreciated.
smed is offline   Reply With Quote
Old 11-30-17, 06:47 PM   #2
FolderBeholder
Senior Member
 
FolderBeholder's Avatar
 
Join Date: Oct 2017
Location: Inland Southern California
Bikes: 1963 Schwinn, EuroMini Urbano, Magnum Premium 48
Posts: 72
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 18 Post(s)
Did you contact Downtube? He (Yan) has some racks he told me when I inquired about them.
FolderBeholder is offline   Reply With Quote
Old 12-01-17, 11:18 AM   #3
downtube
Senior Member
 
downtube's Avatar
 
Join Date: Sep 2005
Location: Greensboro, NC
Bikes: Many Downtube Folders :)
Posts: 1,360
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 205 Post(s)
You can use the 4 braze-ons for the rack or just two and the bottom shock bolts. I've had customers use either depending on the rack they purchase. I think most universal racks ( they come with an extra set of arms to accommodate the distance ) should work.

Thanks,
Yan
__________________
Designer of Downtube Folding Bike
Ph.D. Temple University ( Math )
Biked across the USA twice
Semi-active chess player ( two time Bahamas National Champion )
Sivananda ( Bahamas ) Trained Yoga instructor ( 2013 ) and ThetaHealer since 2013
Bicycle delivery worker for Jimmy John's. Delivering is the best workout I have ever had.
downtube is offline   Reply With Quote
Old 12-01-17, 11:22 AM   #4
fietsbob 
coprolite
 
fietsbob's Avatar
 
Join Date: Jun 2010
Location: NW,Oregon Coast
Bikes: 8
Posts: 29,180
Mentioned: 66 Post(s)
Tagged: 0 Thread(s)
Quoted: 3206 Post(s)
All panniers are made assuming you have a regular rear rack , rather than just look, try fitting a few on at your LBS...

if they are like the one here they should help fit it.

Bike Friday uses the space under the rack, over the small wheel, for another bag that fits there..






....
fietsbob is offline   Reply With Quote
Old 12-01-17, 08:11 PM   #5
wesgreen
Senior Member
 
Join Date: Nov 2015
Bikes:
Posts: 91
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 28 Post(s)
Best rack I know is by Pletscher. They make a version for 20'' wheels. Stronger and more adjustable, but not heavier than most. Worth every penny to me.
wesgreen is offline   Reply With Quote
Old 12-02-17, 10:29 AM   #6
Doc_Wui
Senior Member
 
Doc_Wui's Avatar
 
Join Date: Jul 2015
Location: Chicago Suburbs
Bikes: Diamonback, Transeo, Trek, Giant
Posts: 386
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 72 Post(s)
The downtube 8FS has its rear braze-ons about 2" higher than its sister model, the Nova. I was able to cut the struts and have enough material left to drill new holes on an inexpensive $15 rack to fit the Nova. I had to use extra brackets to fit a second unit on my 8FS.

Looking at citizen racks, those probably could have adapted to fit either bike, but at $60 each, my budget was stretched too thin for my n+1 and n+2 bikes.

If I had to do one for an 8FS right now, this $17 ebay rack might suffice for me. I doubt it would work as designed. Front rods definitely have to be shortened, as would the shortest strut. The main strut might attach to the braze-ons. If not, it gets cut too. Fun with my Sawzall. I own one. Gotta use it sometimes.
Doc_Wui is offline   Reply With Quote
Old 12-05-17, 06:53 AM   #7
smed
Junior Member
Thread Starter
 
Join Date: Jul 2012
Bikes:
Posts: 5
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Thanks for the suggestions.
and Yes, Dr Yan did suggest, as he did above in this post, finding a Universal type rack that had an extra set of arms to use for securing the front-end of the rack.

I guess my problem is with the geometry, I've fitted racks on "regular" bikes enough times to know how they work but the geometry on the 8FS is such that the arms extending out from the front of the "Universal" type racks would have to be configured to point straight downwards in order to utilize the top set of braze-ons on the rear fork. This seems very like it would be very odd looking and I'm not sure how well that would keep the rack in a constant position such that the top of the rack is parallel with the ground. I guess it's something I'm going to have to futz with a bit and as suggested, possibly need to cut the arms so they fit as desired. I'm not a mechanic but I think I should be able to figure something out. I guess I was hoping there was a more obvious-fitting rack design for this bike but I guess not. Having the braze-ons is a plus though so at least I have something, it's a start.

Thanks for all of the suggestions, thanks to Dr Yan for making a fantastic bike, if you dont already have one, they rock.
smed is offline   Reply With Quote
Old 12-05-17, 10:50 AM   #8
Doc_Wui
Senior Member
 
Doc_Wui's Avatar
 
Join Date: Jul 2015
Location: Chicago Suburbs
Bikes: Diamonback, Transeo, Trek, Giant
Posts: 386
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 72 Post(s)
Quote:
Originally Posted by smed View Post
I guess my problem is with the geometry, I've fitted racks on "regular" bikes enough times to know how they work but the geometry on the 8FS is such that the arms extending out from the front of the "Universal" type racks would have to be configured to point straight downwards in order to utilize the top set of braze-ons on the rear fork.
You mean like this. I was pretty happy that these front arms were able to rotate like that.
Attached Images
File Type: jpg racker-1.JPG (94.2 KB, 42 views)
Doc_Wui is offline   Reply With Quote
Old 12-05-17, 12:08 PM   #9
smed
Junior Member
Thread Starter
 
Join Date: Jul 2012
Bikes:
Posts: 5
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Quote:
Originally Posted by Doc_Wui View Post
You mean like this. I was pretty happy that these front arms were able to rotate like that.
Yes! Like that...exactly. Thank you....the picture is very helpful. I "imagined" it looking like that but seeing it makes me feel a lot better. Ok well now I know what I have to do....and how to do it.
Thanks a bunch for all the feedback.
smed is offline   Reply With Quote
Old 12-05-17, 04:12 PM   #10
jur
Senior Member
 
Join Date: May 2005
Location: Melbourne
Bikes:
Posts: 7,361
Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 275 Post(s)
Quote:
Originally Posted by smed View Post
Yes! Like that...exactly. Thank you....the picture is very helpful. I "imagined" it looking like that but seeing it makes me feel a lot better. Ok well now I know what I have to do....and how to do it.
Thanks a bunch for all the feedback.
The mounting arms form a parallelogram. You will need to be careful the whole works doesn't rotate backwards, dumping the load. It could go as far as making those short arms sit horizontally. The mounting bolts and arm ends will come under some stress due to rotation. Check this problem out by loosening all mounting bolts to see how far this can rotate.
jur is offline   Reply With Quote
Old 12-09-17, 07:58 AM   #11
smed
Junior Member
Thread Starter
 
Join Date: Jul 2012
Bikes:
Posts: 5
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Quote:
Originally Posted by jur View Post
The mounting arms form a parallelogram. You will need to be careful the whole works doesn't rotate backwards, dumping the load. It could go as far as making those short arms sit horizontally. The mounting bolts and arm ends will come under some stress due to rotation. Check this problem out by loosening all mounting bolts to see how far this can rotate.
hey - thanks for the tip!
I'm still not sure which direction I'm going to go. I did find a seatpost mounted rack solution that has panniers but I can't stand the way it looks. I'm all about functionality usually but the seatpost mounted solutions just look goofy to me, might as well just carry a backpack.
anyway - thanks again.
smed is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 12:14 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    get answers from real people!
Click to start entering your question.
I HAVE A QUESTION